Electric excavator controller

The utility model relates to an electric excavator controller which comprises an input mechanism, a central processing displayer, a central controller, a throttle knob and an electronic encryption dog. The central controller collects whole vehicle working state and parameters of an electric excavator through a sensor, and transfers collected data to the central processing displayer. The central processing displayer gathers the uploaded data, analyzes and displays the uploaded data, and transfers processing results to the central controller, a main frequency converter and a return frequency converter. The throttle knob is used for adjusting the rotation speed of a main motor in a manual mode. The electronic encryption dog is used for as a hardware encryption device and for limiting the changing permission of system parameters when the system parameters are changed. The controller can achieve collecting and processing of the whole vehicle working state of the electric excavator, reads and displays the states of